Home / 21,611.18-32,409.25-7,570.89

Finding the Fourth Proportional to 21,611.18, 32,409.25 and 7,570.89

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Solution

The fourth proportional to 21,611.18, 32,409.25 and 7,570.89 is: 11,353.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,611.18 : 32,409.25 = 7,570.89 : x
  2. Step 2: Convert to fraction form
    21,611.18/32,409.25 = 7,570.89/x
  3. Step 3: Cross multiply
    21,611.18x = 32,409.25 × 7,570.89
  4. Step 4: Simplify right side
    21,611.18x = 245,366,847.81
  5. Step 5: Solve for x
    x = 245,366,847.81/21,611.18
  6. Step 6: Final answer
    x = 11,353.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.